Advertisements
Advertisements
प्रश्न
Name and state the action and reaction in the following case:
A person walking on the ground.
Advertisements
उत्तर
Force applied by man on ground is action and force of friction is the reaction
APPEARS IN
संबंधित प्रश्न
Choose the correct alternative:
Acceleration due to gravity is independent of mass of the earth/mass of the body.
A particle of mass 100 g is kept on the surface of a uniform sphere of mass 10 kg and radius 10 cm. Find the work to be done against the gravitational force between them to take the particle away from the sphere.
Define one Newton. How much maximum acceleration can it produce in a mass of 1 kg?
A ball is thrown up with a speed of 4.9 ms-1.
Calculate the maximum height it would gain before it begins to fall.
Two equal and opposite forces acting at the same point on a stationary body. Will the body move? Give reason to explain your answer.
What is the difference between gravity and gravitation?
Is there a gravitational attraction between you and the book? Explain.
Answer the following question.
State Newton’s law of gravitation and express it in vector form.
Solve the following problem.
Find the gravitational force between the Sun and the Earth.
Given Mass of the Sun = 1.99 × 1030 kg
Mass of the Earth = 5.98 × 1024 kg
The average distance between the Earth and the Sun = 1.5 × 1011 m.
Find the gravitational force of attraction between the ring and sphere as shown in the diagram, where the plane of the ring is perpendicular to the line joining the centres. If `sqrt8` R is the distance between the centres of a ring (of mass 'm')and a sphere (mass 'M') where both have equal radius 'R'.
